Julius friedrich charles jurgens



No. 627,l2 I. Patented June 20, I899. .1. F. c. JURGENS.

GAS COCK HAVING IGNITING TUBE.

(Application filed Jan. 18, 1898.) (No Model.)

Nrrnn TATES JULIUS FRIEDRICH CHARLES J IIRGENS, OF ALTONA, GERMANY.

GAS-COCK HAVING lGNlTlNG-TUBE.

SPECIFICATION forming part of Letters Patent No. 627,121, dated June 20, 1899. Application-filed January 18, 1898. Serial No. 667,107. (No model.)

To all whom, it may concern:

Be it known that I, JULIUS FRIEDRICH CHARLES J iiRGENs, a subject of the King of Prussia, German Emperor, residing at Altona, Germany, have invented certain new and useful Improvements in Gas-Cocks Having Igniting-Tubes, of which the following is a specification.

This invention relates to a gas-cock having an igniting-pipe and provided with improved means for turningthe cock-plug back after the ignition of the main flame by such pipe has been effected.

In the accompanying drawings, Figure 1 is a front elevation of a Bunsen burner provided with my improvement. Figs. 2, 3, and 4 are vertical sections showing the gas-cock in three different positions-viz., (0.) with the igniting-pipe opened and the main pipe partly opened, (b) with the igniting-pipe closed and the main pipe completely opened, and (c) with both the igniting-pipe and the main pipe closed. Fig. 5 shows the gas-cock in horizontal section, and Fig. 6 is a ring for effecting the automatic closing of the gas-cock.

The igniting-pipe b branches off in the usual manner from the cock-casing a. This igniting-pipe may be either an ordinary pilot-flame pipe or it may-be an ordinary igniting-pipe provided with an igniting-bodysuch, for example, as spongy platinum. The ignitingpipe communicates, by means of a small lateral hole a, with the bore cl of the cock-plug f, so that the passage for the supply of gas may take place through the igniting-pipe and the partiallyopen main pipe, Fig. 2, or through the main pipe alone, Fig. 3, to the burner, or may be completely out off, Fig. 4. In order to obviate a further operation of the plug by hand for the purpose of cutting off the supply of gas tothe igniting-pipe after the main jet has been ignited, the casing a is provided at its front end with a short recess g, in which engages the pin h of a ring 4,, which is loosely mounted on the plug, Fig. 5, so that it can freely rotate on the plug in either direction. This ring is also provided on its front face with a recess 70, in which works a pin a, fixed to a lever m, rigidly mounted upon the end of the plug f, and from the opposite ends of which rings q and r are suspended.

By means of a spring p, which is attached at one end to a ring 0 of the burner-casing and at the other end to the ring i, or by means of a weight attached to the ring 2', the said ringt' has a constant tendency to turn and bring its pin h to bear against the right-hand shoulder or stop of the recess 9.

When the main flame has to be ignited, the ring q is pulled to rotate the plug f by lever m and cause the pin n to strike the left-hand shoulder or stop of the recess is, Fig. 1. On further pulling the ring q the ring 11 will be moved also against theraction of the spring 19, which will be placed in tension. This will continue until the pin it strikes against the left-hand shoulder or stop of the recess g. In this position (see dotted line A A of Fig. 1 and the sectional view, Fig. 2) the bore 0 of the plug coincides with the branch passage b, so that ignition of the main supplyof gas can be effected. When this has been done, the ring q is released, whereupon the spring 19 rotates the ring 1' freelyon plug f 1 toward the right until the pin h strikes the upper end of the short recess 9. During this short travel of the ring it will have taken the plug f along by means of the engagement of the end of recess is with pin it of lever m, and thus the plug will be turned a short distance back to close the branch passage, but leave the main passage open, Fig. 3. In order to extinguish the flame, it is sufficient to pull the ring r so that the pin' it passes through the recess 70 without taking ring I: along and until the pin ncomes in contact with the right-hand shoulder of the recess 76. (See dotted line B B of Fig. 1 and the sectional view, Fig. 4E.) The motion thus imparted to plug f by lever on will have closed the main gas-passage and extinguished the flame.

What I claim is A gas-cock composed of a recessed casing, a plug having a main and a branch duct, a spring-actuated recessed ring rotatable upon the plug and provided with a stop-pin adapted to engage the recess of the casing, and a plugoperating lever. having a pin that engages the recess of the ring, substantially as specified.

Signed at Hamburg, Germany, this 4th day of January, A. D. 1898.

JULIUS FRIEDRICH CHARLES JIIRGENS.

' Witnesses:

MAX FOUQUET, KARL KUSSIOKE. 

